Equipment/System Type

State of New Mexico Public School Facilities Authority HVAC and Controls Maintenance Checklist

Air Handling Units

District/Building: Date: Manufacturer: Model: Serial: Area/System Served:

The Contractor shall have personnel with direct knowledge complete this checklist to verify that preventive maintenance has been performed during each scheduled visit. These checklists do not replace any manufacturer-recommended procedures or any procedures required by the PSFA computerized maintenance management system.

Cooling Pre-season Inspection  N/A Comment Check box for completion Check in with District Physical Plant personnel Review equipment logs, operational problems and work performed by District personnel Review PSFA Preventive Maintenance Task List Flush and clean condensate pans and drains Inspect wiring for deterioration; Tighten electrical connections Visually inspect disconnect switches and starters for broken parts, contact arcing or any evidence of overheating Clean air intake and screens Check dampers and seals for dirt accumulations Check damper motors and linkage for proper operation Replace filters Check belts for wear; adjust tension or alignment and replace when necessary Clean fan and motor; Check fan blades for cracks or excessive wear Check bearing collar set screws on fan shaft for tightness Lubricate fan and motor if required Check all motors, belts, pulleys, shafts, etc. for alignment Check direct drive couplings for alignment and tightness of assembly. Check flexible couplings for alignment and wear. Check fan for vibration or excessive noise. Check fan RPM against design specifications Clean cooling coils and check for leaks Use fin comb to straighten coil fins Operate unit - Check all controls and freeze protection Record outside ambient air temperature: ______F Record cooling coil entering water temperature: ______F Record cooling coil leaving water temperature: ______F Record return air temperature: ______F Record supply air temperature: ______F Check Fan Motor Amps: Rated______Actual ______Replace any covers removed and clean area Restore power and proper operating mode as needed Remove all trash and debris from maintenance activities Check out with District Physical Plant personnel

The above maintenance checklist items have been verified complete:

Contractor Representative Signature Date

Maintenance Checklist 8/16/07 Air Handling Units Page 1 of 4 State of New Mexico Public School Facilities Authority HVAC and Controls Maintenance Checklist

Air Handling Units

Heating Pre-season Inspection  N/A Comment Check box for completion Check in with District Physical Plant personnel Review equipment logs, operational problems and work performed by District personnel Review PSFA Preventive Maintenance Task List Drain cooling coils; blow down to remove moisture; refill with antifreeze and water solution; drain Inspect wiring for deterioration; Tighten electrical connections Visually inspect disconnect switches and starters for broken parts, contact arcing or any evidence of overheating Clean air intake and screens Check dampers and seals for dirt accumulations Check damper motors and linkage for proper operation Replace filters Check belts for wear; adjust tension or alignment and replace when necessary Clean fan and motor; Check fan blades for cracks or excessive wear Lubricate fan and motor if required Check all motors, belts, pulleys, shafts, etc. for alignment Check direct drive couplings for alignment and tightness of assembly. Check flexible couplings for alignment and wear. Check fan for vibration or excessive noise. Check fan RPM against design specifications Clean heating coils and check for leaks Use fin comb to straighten coil fins Operate unit - Check all controls and freeze protection Record outside ambient air temperature: ______F Record heating coil entering water temperature: ______F Record heating coil leaving water temperature: ______F Record return air temperature: ______F Record supply air temperature: ______F Check Fan Motor Amps: Rated______Actual ______Restore power and proper operating mode as needed Remove all trash and debris from maintenance activities Check out with District Physical Plant personnel

Air Handling Units

Cooling In-season Inspection  N/A Comment Check box for completion Check in with District Physical Plant personnel Review equipment logs, operational problems and work performed by District personnel Review PSFA Preventive Maintenance Task List Check condensate pans and drains Clean air intake and screens Check damper motors and linkage for proper operation Replace filters Check belts for wear; adjust tension or alignment and replace when necessary Check fan for vibration or excessive noise Record outside ambient air temperature: ______F Record cooling coil entering water temperature: ______F Record cooling coil leaving water temperature: ______F Record return air temperature: ______F Record supply air temperature: ______F Check Fan Motor Amps: Rated______Actual ______Operate unit - Check all controls and freeze protection Replace any covers removed and clean area Restore power and proper operating mode as needed Remove all trash and debris from maintenance activities Check out with District Physical Plant personnel

Air Handling Units

Heating In-season Inspection  N/A Comment Check box for completion Check in with District Physical Plant personnel Review equipment logs, operational problems and work performed by District personnel Review PSFA Preventive Maintenance Task List Clean air intake and screens Check damper motors and linkage for proper operation Replace filters Check belts for wear; adjust tension or alignment and replace when necessary Check fan for vibration or excessive noise Lubricate fan and motor if required Record outside ambient air temperature: ______F Record heating coil entering water temperature: ______F Record heating coil leaving water temperature: ______F Record return air temperature: ______F Record supply air temperature: ______F Check Fan Motor Amps: Rated______Actual ______Operate unit - Check all controls and freeze protection Replace any covers removed and clean area Restore power and proper operating mode as needed Remove all trash and debris from maintenance activities Check out with District Physical Plant personnel

Maintenance Checklist 8/16/07 Air Handling Units Page 4 of 4